20H2 Client loosing all device configuration policies

I have some 20H2 Clients which are loosing using all Intune device configuration policies after a while.
In the DeviceManagement-Enterprise-Diagnostics-Provider Log I can see the error:

Error ID 455 "MDM ConfigurationManager: Caller did not specify user to impersonate to. Targetted user sid: (NULL) Result: (Unknown Win32 Error code: 0x86000022).

Everything else like app install and baselines is working normally.
All systems are co-managed with SCCM 2006, all patches applied.

I cannot find any helpful information reargding this error msg.....

Thank you!!!

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PuDerBaer · Jan 07, 2021 at 11:39 AM

Seems that the 455 error is not necesscerily causing the loosing of the device configuration policies.
Actually I found some devices having that error but the configuration is still applied.
So the question is why are the device configuration policies disappearing and where to start troubleshooting?
And where does the 455 error come from?

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LuDaiMSFT-0289 PuDerBaer · Jan 08, 2021 at 02:23 AM

@PuDerBaer Thanks for posting in our Q&A. From your description, I know that the device configuration policies didn't work on windows 10 20H2 clients. If this is anything misunderstanding, feel free to let us know.

To clarify this issue, we need to do the test in our lab. We appreciate your help to get the screen shots of one device configuration policy that didn't work in 20H2 clients.

If there is any update, feel free to let us know.

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